Invasive Plants

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Invasive plants are non-native plants that were introduced to our environment through seeds, cuttings, garden plants, etc. They spread aggressively and take over the natural environment. They out-compete native plants, including endangered species, and destroy habitat for fish, birds and other wildlife. They can also cause erosion and silt problems in creeks and impact aquatic creatures. Invasive plants are expensive to control and eradicate. Some, like Giant Hogweed, are even dangerous to human health. Quite simply, they are Bad Seeds.

Review Coquitlam's Invasive Plant Management Strategy, the Invasive Species Council of BC website and Metro Vancouver Best Management Practices for more information.

Prevent the Spread of Invasive Species!

  • Never dump garden waste, hanging baskets or anything else into natural areas.
  • Dispose of invas​ive plant material in your Green Cart instead of your backyard compost (see below for hogweed disposal requirements).
  • Avoid buying plants promoted as fast spreaders or vigorous self-seeders as they are often invasive.
  • Contain or remove invasive plants on your property to prevent them from spreading to other properties.
  • Use caution when ordering plant seeds over the Internet or through catalogues. Introducing foreign seeds are a key way that invasive plants find their way into our community.
  • Read Grow ​Green Guide Home and the Native Plant Society of British Columbia to learn about BC's most "unwanted" plants, along with recommended alternatives.

Common Invasive Plant Species

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  • English Ivy

  • Yellow Lamium (Yellow Archangel)

  • Periwinkle

  • Morning Glory

  • Japanese Knotweed

  • Giant Hogweed

Removal and Disposal of Hogweed

If you find Giant Hogweed on your property, it needs to be removed as per the City's Noxious Weed Bylaw No. 4181, 2010.

CAUTION - If you are exposed to Giant Hogweed, wash the affected area immediately, keep it out of the sun and seek medical advice.

Report Giant Hogweed Sightings in Coquitlam

Please report Giant Hogweed in Coquitlam, by using the Online Hogweed Reporting Form or by contacting Parks Customer Service - see contact details below.

Volunteering Opportunities

Are you interested in becoming a Bad Seed volunteer?

If you have a group interested in organizing an invasive plant pull with the City of Coquitlam, please contact the Parks Resource Technician. If you are an individual looking to join a scheduled invasive plant pull, register with Better Impact and watch for upcoming Bad Seed events.

For more volunteer opportunities, contact local community groups: Burke Mountain Naturalists, Friends of Deboville Slough, Hoy-Scott Watershed Society and the Maple Creek Watershed Streamkeepers Society.

Parks Customer Service

For any concerns or enquiries, please contact us:
Phone:  604-927-6300